HOUSTON, March 10 (Reuters) - Freeport-McMoRan (FCX.N), opens new tab hopes U.S. President Donald Trump declares copper a critical mineral, a move that would unlock tax credits needed to boost ...

The U.S. Geological Survey lists lithium, nickel and 48 other minerals as critical. Adding copper would help Freeport generate more than $500 million annually in tax credits tied to the U.S ...